Pull-chain socket



Jan v1925. 7 1,523,099

' J. ASKINS PULL CHAIN SOCKET Filed March 24, 1925 Patent@ Jan. 13, 1925..

PATENT JOSEPH ASKINS, OF CHICAGO, ILLINOIS, ASSIG-NOR OF CHICAGO, ILLINOIS, A

TO PEERLESS I'iIGH'J? COMPANY, CORPORATION OF MAINE.

PULL-CHAIN SOCKET.

Application filed March 24, 1923. Serial No. 627,271.

To all whom it may concern:

Be it known that I, Josnrn ,ASKINS, a citizen of the present Government of Russia, and a resident of Chicago, Cook County, Illinois, have invented certain new and useful Improvements in Pull-Chain Sockets, of which the following is declared to be a full, clear and exact description.

his invention relates sockets and its princi a. pull chain socket w tured economically al object is to provide ich may be manufacand which may be formed, in the main, of standard, commercial parts. Another object is to provide a pull chain socket composed in the main, of standard, commercial parts which may be readily assembled with other parts, to form a complete pull chain socket of the type w ich screws into the ordinary threaded electric light socket. Another object 1s to provide a pull chain socket of the type which screws into the ordinary electric light socket, which may be readily assembled and disassembled whereby the interior may be readily exposed in case it becomes necessary repair or adjust parts thereof. With these and other objects and advantages in view, this invention consists in the several novel features hereinafter fully set forth and claimed.

e invention is clearliyl drawing accompanying t illustrated in the is specification, in

which:

Fig. 1 is a side elevation of a pull chain socket, em 'ng a simple form of the present invention; Fig. 2 is a side elevation, showin the three main elements vofthe socket a central, longitduinal section through the socket; Fig. 4 is an end or face view of the plug member of the socket; Fig. 5 is an end or face view of the socket member of the device, and Fig. 6 is a perspective view of one of the contact fingers employed in the construction of the device.

Referring to said drawing, the reference character 10 designates that member of a all chain socket of the ordinary and well own construction, which contains the usual threaded shell 11 for the reception of an electric light bulb or threaded plug, switch mechanism of which is of the usual and well, known construction, operated by a to pull chain 20 bers 23, 24 th .cordance with etached from one another; Fig. 3 is b chain or cord 13, as is well understood. Standard commercial pull chain sockets have two terminals 14, 15 to which the ends of the usual house wires are connected by screws 16, 17.

18 designates an ordinary push and pull plug member having the usual threaded shell 19 and the usual center contact piece s is customary in push and pull plugs, two parallel channels 21, 22 are formed in the plug in which channels are contact memat are secured respectively to the shell 19 and center contact'piece 20. The parts thus far described are common and well known and require no further detailed description so far as this specification is concerned.

In constructing a pull chain socket in ac- I provide contact fingers 25, 26 which I secure to the terminals 14, 15, using the screws 16, 17 for this Said contact fingers have apertured end ortions 27 through which the screws 16, 17 are inserted and have other portions 28 that extend atright angles to the end portions 27 and lie against the end face of the porcelain or other non-conducting body portion. of the contact pieces 30 are arranged parallel with each other and enter the channels 21, 22 of the plug member 18 and make contact with the contact pieces 23, 24 thereof.

The socket member 10 and plug member 18 are positively connected together by a thim 1e like or ferrule like connection 31 which has a central aperture through which the plug member extends, and an overhanging flange like part 32 which overhangs a shouldered portion 33 of the plug member 18. The connecting member 31 and outer casing 34 of the socket member 10 have means which co-act with each other to secure the member 31 upon the socket 10 and for this purpose the usual depressed lu 35 are pro vided in the connecting mem r 31 which enter holes 36 in the casing 34.

e parts are assembled by insertin the contact members 30 of the fingers 26 into the channels 21, 22 of the lug member 18 and thereafter slip ing t he ferrule like connecting member 3 over the plus mcmber18 and engaging the lugs of said member 31 in the holes 36 of the shell 34 otthe Socket member 10.

In its assembled condition, the pull chain socket may be screwed into the ordinary electric light socket, and an electric light bulb or a screw plug may be screwed into the threaded shell 11 of the socket 10, and the current to said bulb or plug may be controlled by the switch mechanism as usual. Fuithermore a pull chain socket member provided with the contact fingers 25, 26 may be used in connection with a stationary push and pull socket, although it is preferred to use the device in its fully assembled condition.

More or less variation of the exact details of construction is possible without departing from the spirit of this invention; I desire, therefore, not to limit myself to the exact form of the construction shown and described, but intend, in the following claims, to point out all of the invention disclosed herein.

I claim as new and desire to secure by Letters Patent:

1. A pull chain socket, comprising in combination a pull chain socket member. having pull chain switch elements, including two terminal members, two contact fingers secured to the said terminal members, a push and pull plug member having a center contact piece and an external threaded contact shell, and having internal electric contact members leading from said centre contact piece and from said threaded shell and contacting with said contact fingers of the socket, and a ferrule like connectin member having portions co-acting with t e socket member and plug member for securing them together.

2. A pull chain socket, comprising in combination a pull chain socket member, having pull chain switch elements, including two terminal members, and two contact fingers secured to the said terminal members, a push and pull plug member having a centre'contact piece and an external threaded contact shell and having internal electric contact members leading from said centre contact piece and from said threaded shell. and contacting with said contact fingers ot the socket, said push and plug member having a shouldered end, and a ferrule like connecting member having a flange overhanging said shoulder, and lugs engaging in holes in the socket member. v

JOSEPH ASKINS. 

